Effectiveness of fresh frozen plasma in the resolution of coagulopathy in human patients following hemotoxic snakebites: a systematic review and meta-analysis
Notice bibliographique
Résumé
OBJECTIVE: To assess the effectiveness of fresh frozen plasma (FFP) as an adjunctive treatment to anti-snake venom (ASV) for resolving venom-induced consumption coagulopathy (VICC) in patients with hemotoxic snakebites. DESIGN: Systematic review and meta-analysis, reported in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. DATA SOURCES: MEDLINE, ScienceDirect, Embase, Scopus, Web of Science, Cochrane Central Register of Controlled Trials, Europe PubMed Central, Directory of Open Access Journals, Google Scholar, ClinicalTrials.gov and WHO ICTRP were searched from inception to 30 July 2025 using multiple terms, including 'fresh frozen plasma', 'plasma transfusion', 'hemotoxic snakebite', 'vasculotoxic snakebite', 'coagulopathy in snake bite' and 'venom-induced consumption coagulopathy'. ELIGIBILITY CRITERIA: We included randomised controlled trials and observational studies in the English language comparing antivenom alone with antivenom with FFP in patients with hemotoxic snakebite-induced coagulopathy. Studies must have reported coagulopathy resolution as measured by international normalised ratio (INR) normalisation or 20 min whole blood clotting test (WBCT) correction. Non-English publications, case reports, case series, reviews, conference abstracts, preclinical studies and studies lacking full-text availability or without quantitative INR or WBCT outcome data were excluded. DATA EXTRACTION AND SYNTHESIS: Two independent reviewers extracted data using standardised extraction forms and assessed risk of bias using the Cochrane Risk of Bias 2 tool for randomised controlled trials and the Newcastle-Ottawa scale for observational studies. Data were pooled using random-effects meta-analysis and expressed as ORs with 95% CIs. Statistical heterogeneity was assessed using I² statistics, and the certainty of evidence was evaluated using the Grades of Recommendation, Assessment, Development and Evaluation approach. RESULTS: Four studies involving 370 patients were included (two randomised controlled trials and two prospective observational studies). The pooled analysis demonstrated that adjunctive FFP significantly increased the likelihood of coagulopathy resolution compared with antivenom alone (OR=7.71, 95% CI 2.20 to 27.04, p=0.001). No evidence of a significant difference in mortality was observed between groups (OR=4.96, 95% CI 0.55 to 44.60, p=0.15). High heterogeneity was noted among the four studies (I² = 67%), but a subgroup analysis of three studies, which used INR as the outcome assessment method, showed lower heterogeneity (I² = 25%). Adverse events were inconsistently reported across studies. CONCLUSIONS: FFP as an adjunct to antivenom significantly improves coagulopathy resolution in patients with hemotoxic snakebite-induced coagulopathy. However, the certainty of evidence is very low because of methodological limitations, small sample sizes and significant heterogeneity. Although FFP shows promise for rapid coagulopathy correction, mortality benefits are not established, and it should not replace timely antivenom administration or comprehensive supportive care. STUDY REGISTRATION: PROSPERO, CRD42023483336.
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Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,014 | 0,030 |
| Méta-épidémiologie (sens strict) | 0,003 | 0,001 |
| Méta-épidémiologie (sens large) | 0,023 | 0,036 |
| Bibliométrie | 0,007 | 0,007 |
| Études des sciences et des technologies | 0,001 | 0,001 |
| Communication savante | 0,003 | 0,002 |
| Science ouverte | 0,002 | 0,001 |
| Intégrité de la recherche | 0,003 | 0,002 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,004 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».